Switzerland offers 50,000 francs for the best idea to retrieve ammunition from lake beds

Switzerland has offered 50,000 francs for the best idea to retrieve ammunition from the bottom of the country's lakes. More than 7,000 tons of ammunition rest on the lake beds, having been discarded there by the military. They believed this would ensure safe disposal. In reality, the munitions can still explode or contaminate the water and sediment. The prize fund will be split among the three safest and most environmentally friendly ideas. The rescue operation for the lakes will cost billions.